"Countries in Europe have some of the lowest homicide rates in the world, but sub-national data can paint some interesting pictures within those countries and in certain trans-border regions (see map 1.4). The most significant differences lie in the west-to-east geographical distribution of homicide, as homicide rates increase eastwards across Europe, and there are also higher homicide rates in certain parts of Northern Europe. Available data indicate that this phenomenon is associated with patterns of alcohol consumption (see chapter 3), among other factors.
"While homicide rates are generally low in the rest of Europe, certain spots with consistently higher homicide rates over time can be noted. At the national level, they include Albania and Montenegro. Sub-nationally they can be found in the Algarve, the southernmost part of Portugal, which has a homicide rate of 2.5 per 100,000; in the southern tip of Italy, whose homicide rate is attributable to the prevalence of Mafia-related killings (see chapter 2.1); on the French island of Corsica; and in certain more densely-populated urban areas that have higher homicide rates than the rest of their respective countries, such as Amsterdam, Brussels, Prague and Vienna."


UNODC Global Study on Homicide 2013 (United Nations publication, Sales No. 14.IV.1), p. 27.